Intravenous immunoglobulins in children with new onset dilated cardiomyopathy

Josephine F. Heidendael, Suzanne L. den Boer, Joanne G. Wildenbeest, Michiel Dalinghaus, Bart Straver, Dasja Pajkrt

Research output: Contribution to journalArticleAcademicpeer-review

Abstract

Background Dilated cardiomyopathy is a rare but serious disorder in children. No effective diagnostic or treatment tools are readily available. This study aimed to evaluate the efficacy of intravenous immunoglobulins in children with new onset dilated cardiomyopathy. Methods and results In this retrospective cohort study, 94 children with new onset dilated cardiomyopathy were followed during a median period of 33 months. All patients with secondary dilated cardiomyopathy - for example, genetic, auto-immune or structural defects - had been excluded. Viral tests were performed in all patients and 18 (19%) children met the criteria for the diagnosis probable or definite viral myocarditis. Intravenous immunoglobulins were administered to 21 (22%) patients. Overall transplant-free survival was 75% in 5 years and did not differ between treatment groups. The treatment was associated with a higher recovery rate within 5 years, compared with non-treated children (70 versus 43%, log rank=0.045). After correction for possible confounders the hazard ratio for recovery with intravenous immunoglobulins was not significant (hazard ratio: 2.1; 95% CI: 1.0-4.6; p=0.056). Administration of intravenous immunoglobulins resulted in a greater improvement in the shortening fraction of the left ventricle. Conclusion In our population of children with new onset dilated cardiomyopathy, of either viral or idiopathic origin, intravenous immunoglobulins were administered to a minority of the patients and did not influence transplant-free survival, but were associated with better improvement of systolic left ventricular function and with better recovery. Our results support the concept that children with new onset dilated cardiomyopathy might benefit from intravenous immunoglobulins.
Original languageEnglish
Pages (from-to)46-54
JournalCardiology in the Young
Volume28
Issue number1
DOIs
Publication statusPublished - 2018

Cite this

Heidendael, Josephine F. ; den Boer, Suzanne L. ; Wildenbeest, Joanne G. ; Dalinghaus, Michiel ; Straver, Bart ; Pajkrt, Dasja. / Intravenous immunoglobulins in children with new onset dilated cardiomyopathy. In: Cardiology in the Young. 2018 ; Vol. 28, No. 1. pp. 46-54.
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title = "Intravenous immunoglobulins in children with new onset dilated cardiomyopathy",
abstract = "Background Dilated cardiomyopathy is a rare but serious disorder in children. No effective diagnostic or treatment tools are readily available. This study aimed to evaluate the efficacy of intravenous immunoglobulins in children with new onset dilated cardiomyopathy. Methods and results In this retrospective cohort study, 94 children with new onset dilated cardiomyopathy were followed during a median period of 33 months. All patients with secondary dilated cardiomyopathy - for example, genetic, auto-immune or structural defects - had been excluded. Viral tests were performed in all patients and 18 (19{\%}) children met the criteria for the diagnosis probable or definite viral myocarditis. Intravenous immunoglobulins were administered to 21 (22{\%}) patients. Overall transplant-free survival was 75{\%} in 5 years and did not differ between treatment groups. The treatment was associated with a higher recovery rate within 5 years, compared with non-treated children (70 versus 43{\%}, log rank=0.045). After correction for possible confounders the hazard ratio for recovery with intravenous immunoglobulins was not significant (hazard ratio: 2.1; 95{\%} CI: 1.0-4.6; p=0.056). Administration of intravenous immunoglobulins resulted in a greater improvement in the shortening fraction of the left ventricle. Conclusion In our population of children with new onset dilated cardiomyopathy, of either viral or idiopathic origin, intravenous immunoglobulins were administered to a minority of the patients and did not influence transplant-free survival, but were associated with better improvement of systolic left ventricular function and with better recovery. Our results support the concept that children with new onset dilated cardiomyopathy might benefit from intravenous immunoglobulins.",
author = "Heidendael, {Josephine F.} and {den Boer}, {Suzanne L.} and Wildenbeest, {Joanne G.} and Michiel Dalinghaus and Bart Straver and Dasja Pajkrt",
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Intravenous immunoglobulins in children with new onset dilated cardiomyopathy. / Heidendael, Josephine F.; den Boer, Suzanne L.; Wildenbeest, Joanne G.; Dalinghaus, Michiel; Straver, Bart; Pajkrt, Dasja.

In: Cardiology in the Young, Vol. 28, No. 1, 2018, p. 46-54.

Research output: Contribution to journalArticleAcademicpeer-review

TY - JOUR

T1 - Intravenous immunoglobulins in children with new onset dilated cardiomyopathy

AU - Heidendael, Josephine F.

AU - den Boer, Suzanne L.

AU - Wildenbeest, Joanne G.

AU - Dalinghaus, Michiel

AU - Straver, Bart

AU - Pajkrt, Dasja

PY - 2018

Y1 - 2018

N2 - Background Dilated cardiomyopathy is a rare but serious disorder in children. No effective diagnostic or treatment tools are readily available. This study aimed to evaluate the efficacy of intravenous immunoglobulins in children with new onset dilated cardiomyopathy. Methods and results In this retrospective cohort study, 94 children with new onset dilated cardiomyopathy were followed during a median period of 33 months. All patients with secondary dilated cardiomyopathy - for example, genetic, auto-immune or structural defects - had been excluded. Viral tests were performed in all patients and 18 (19%) children met the criteria for the diagnosis probable or definite viral myocarditis. Intravenous immunoglobulins were administered to 21 (22%) patients. Overall transplant-free survival was 75% in 5 years and did not differ between treatment groups. The treatment was associated with a higher recovery rate within 5 years, compared with non-treated children (70 versus 43%, log rank=0.045). After correction for possible confounders the hazard ratio for recovery with intravenous immunoglobulins was not significant (hazard ratio: 2.1; 95% CI: 1.0-4.6; p=0.056). Administration of intravenous immunoglobulins resulted in a greater improvement in the shortening fraction of the left ventricle. Conclusion In our population of children with new onset dilated cardiomyopathy, of either viral or idiopathic origin, intravenous immunoglobulins were administered to a minority of the patients and did not influence transplant-free survival, but were associated with better improvement of systolic left ventricular function and with better recovery. Our results support the concept that children with new onset dilated cardiomyopathy might benefit from intravenous immunoglobulins.

AB - Background Dilated cardiomyopathy is a rare but serious disorder in children. No effective diagnostic or treatment tools are readily available. This study aimed to evaluate the efficacy of intravenous immunoglobulins in children with new onset dilated cardiomyopathy. Methods and results In this retrospective cohort study, 94 children with new onset dilated cardiomyopathy were followed during a median period of 33 months. All patients with secondary dilated cardiomyopathy - for example, genetic, auto-immune or structural defects - had been excluded. Viral tests were performed in all patients and 18 (19%) children met the criteria for the diagnosis probable or definite viral myocarditis. Intravenous immunoglobulins were administered to 21 (22%) patients. Overall transplant-free survival was 75% in 5 years and did not differ between treatment groups. The treatment was associated with a higher recovery rate within 5 years, compared with non-treated children (70 versus 43%, log rank=0.045). After correction for possible confounders the hazard ratio for recovery with intravenous immunoglobulins was not significant (hazard ratio: 2.1; 95% CI: 1.0-4.6; p=0.056). Administration of intravenous immunoglobulins resulted in a greater improvement in the shortening fraction of the left ventricle. Conclusion In our population of children with new onset dilated cardiomyopathy, of either viral or idiopathic origin, intravenous immunoglobulins were administered to a minority of the patients and did not influence transplant-free survival, but were associated with better improvement of systolic left ventricular function and with better recovery. Our results support the concept that children with new onset dilated cardiomyopathy might benefit from intravenous immunoglobulins.

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JO - Cardiology in the Young

JF - Cardiology in the Young

SN - 1047-9511

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